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authorThomas Gleixner <tglx@linutronix.de>2012-03-06 23:18:54 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-06 16:46:39 -0800
commit52abb700e16a9aa4cbc03f3d7f80206cbbc80680 (patch)
treef396df08518ff22039d2c4da153cba029f01ecd2 /mm
parentce8fea7aa4ad9e3b40999a08622ef27c77159659 (diff)
genirq: Clear action->thread_mask if IRQ_ONESHOT is not set
Xommit ac5637611(genirq: Unmask oneshot irqs when thread was not woken) fails to unmask when a !IRQ_ONESHOT threaded handler is handled by handle_level_irq. This happens because thread_mask is or'ed unconditionally in irq_wake_thread(), but for !IRQ_ONESHOT interrupts never cleared. So the check for !desc->thread_active fails and keeps the interrupt disabled. Keep the thread_mask zero for !IRQ_ONESHOT interrupts. Document the thread_mask magic while at it. Reported-and-tested-by: Sven Joachim <svenjoac@gmx.de> Reported-and-tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Cc: stable@vger.kernel.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions